What is the tree of life?
The tree of life shows how all life on earth is related. Each leaf represents a different species. The branches show how these many species evolved from common ancestors over billions of years. In our interactive tree of life you can explore the relationships between 2,235,076 species and wonder at 105,386 images on a single zoomable page.
- 2,235,076 species
- 105,386 images
Biodiversity and Conservation...
We want to help everyone appreciate biodiversity and the need to conserve it.
Red leaves on our tree of life show species known to be under threat of extinction.
Green leaves are either okay for now but might be nearly threatened.
Most leaves are grey meaning that it's not known how threatened they are.
Become a sponsor...
OneZoom is a registered non-profit in the UK, all our products are available for free. 820 people like you have helped us by making donations. Their names have appeared as sponsors on 1450 leaves of our tree of life leaves of our tree of life.
Only one name per leaf so get your favourite while you can, for yourself or as a gift.
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Sponsored byMichael Dondrup — LiceBase -
Sponsored forIzaak Manning — Wendevalta -
Sponsored byShelly Stewart — supports free education -
Sponsored byIan Daily — Flesh of the Gods -
Sponsored byParker Hicks — California, USA -
Sponsored byRobert Rowland — Adelaide, Australia -
Sponsored forEric Dorfman -
Sponsored forDr. JB Friday — Champion of Hawaii’s forests -
Sponsored forRaymond Smullyan -
Sponsored byDebbie Mercer — Illinois, USA -
Sponsored byAnn Hilton Fisher — Marquette Michigan USA -
Sponsored byWilliam J.R. Longabaugh -
Sponsored forIn memoriam: Eric H. Davidson -
Sponsored byLeonie Lambert -
Sponsored byC & D Rush -
Sponsored forAlison Muldal — for care and green fingers -
Sponsored byMichael Kerr -
Sponsored forAlex Freeman — From Yan and James -
Sponsored forDigna Karčiauskaitė — London, UK -
Sponsored forLeeroy Lapinskas — London, UK
What we've been up to...
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29 September 2022
Donors can now renew their support of sponsored leaves. Sponsorships are only for a four year period, however those who do not renew will remain on our tree of life for the time being. Donors will get an e-mail reminder before their sponsored leaves expire. -
6 February 2022
OneZoom version 3.6 (nickname: musical_furry_lobster) has been officially released. We now show species occurrence (distribution) maps in the popup tabs when clicking on a species, and have instructions for how to run a bespoke OneZoom version with your own images instead of, or as well as, our own pictures. There are also a few minor changes to the tree, with a more recent arrangement of the first few (archaeal) branches, and the addition of the dodo! -
14 December 2021
Announcing the publication of ‘Dynamic visualisation of million-tip trees: The OneZoom project’ out today in Methods in Ecology and Evolution. This publication accompanies OneZoom version 3.5 'Chocolate chip starfish' and explains a lot of the science behind the OneZoom project.
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15 October 2021
OneZoom version 3.5 'Chocolate chip starfish' released with new and improved colour schemes and styles as well as substantial improvements to the content and interpretation pages throughout the site.
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16 October 2020
OneZoom version 3.4.1 released with new public APIs providing information on the popularity of species and representative images for groups of species as well as other tools intentended for use by researchers and other science communication projects.
